Ambient-temperature isolation of a compound with a Boron-Boron triple bond

Braunschweig, Holger, Dewhurst, Rian D, Hammond, Kai, Mies, Jan, Radacki, Krzysztof and Vargas, Alfredo (2012) Ambient-temperature isolation of a compound with a Boron-Boron triple bond. Science, 336 (6087). pp. 1420-1422. ISSN 0193-4511

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Abstract

Homoatomic triple bonds between main-group elements have been restricted to alkynes, dinitrogen, and a handful of reactive compounds featuring trans-bent heavier elements of groups 13 and 14. Previous attempts to prepare a compound with a boron-boron triple bond that is stable at ambient temperature have been unsuccessful, despite numerous computational studies predicting their viability. We found that reduction of a bis(N-heterocyclic carbene)-stabilized tetrabromodiborane with either two or four equivalents of sodium naphthalenide, a one-electron reducing agent, yields isolable diborene and diboryne compounds. Crystallographic and spectroscopic characterization confirm that the latter is a halide-free linear system containing a boron-boron triple bond.

Item Type: Article
Schools and Departments: School of Life Sciences > Chemistry
Subjects: Q Science
Depositing User: Deeptima Massey
Date Deposited: 12 Sep 2013 09:34
Last Modified: 12 Sep 2013 09:34
URI: http://sro.sussex.ac.uk/id/eprint/46158
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